Correct Answer:
D. 27
To solve the expression 18 - 6 / 2 + 4 * 3, we must follow the order of operations, often remembered by the acronym PEMDAS/BODMAS (Parentheses/Brackets, Exponents/Orders, Multiplication and Division from left to right, Addition and Subtraction from left to right).
- First, perform division: 6 / 2 = 3.
- Next, perform multiplication: 4 * 3 = 12.
- The expression becomes: 18 - 3 + 12.
- Then, perform subtraction: 18 - 3 = 15.
- Finally, perform addition: 15 + 12 = 27.
Therefore, the correct answer is 27.